Mikael Colville-Andersen is a guy who lives in Copenhagen, Denmark. He's famous for making bicycling in cities around the world more popular. He writes books and makes videos about cycling and urban life. He also runs a company called Copenhagenize Design Company that helps cities make their roads and paths better for cycling. He also works with bike sharing programs and helps cities set up bike paths and protected lanes that make people feel safer and more comfortable when they ride.